How to connect Lemlist and 123FormBuilder
Create a New Scenario to Connect Lemlist and 123FormBuilder
In the workspace, click the “Create New Scenario” button.

Add the First Step
Add the first node – a trigger that will initiate the scenario when it receives the required event. Triggers can be scheduled, called by a Lemlist, triggered by another scenario, or executed manually (for testing purposes). In most cases, Lemlist or 123FormBuilder will be your first step. To do this, click "Choose an app," find Lemlist or 123FormBuilder, and select the appropriate trigger to start the scenario.

Add the Lemlist Node
Select the Lemlist node from the app selection panel on the right.


Lemlist

Add the 123FormBuilder Node
Next, click the plus (+) icon on the Lemlist node, select 123FormBuilder from the list of available apps, and choose the action you need from the list of nodes within 123FormBuilder.


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Authenticate 123FormBuilder
Now, click the 123FormBuilder node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your 123FormBuilder settings. Authentication allows you to use 123FormBuilder through Latenode.
Configure the Lemlist and 123FormBuilder Nodes
Next, configure the nodes by filling in the required parameters according to your logic. Fields marked with a red asterisk (*) are mandatory.
Set Up the Lemlist and 123FormBuilder Integration
Use various Latenode nodes to transform data and enhance your integration:
- Branching: Create multiple branches within the scenario to handle complex logic.
- Merging: Combine different node branches into one, passing data through it.
- Plug n Play Nodes: Use nodes that don’t require account credentials.
- Ask AI: Use the GPT-powered option to add AI capabilities to any node.
- Wait: Set waiting times, either for intervals or until specific dates.
- Sub-scenarios (Nodules): Create sub-scenarios that are encapsulated in a single node.
- Iteration: Process arrays of data when needed.
- Code: Write custom code or ask our AI assistant to do it for you.

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123FormBuilder
Trigger on Webhook
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Lemlist
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Iterator
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Webhook response

Save and Activate the Scenario
After configuring Lemlist, 123FormBuilder, and any additional nodes, don’t forget to save the scenario and click "Deploy." Activating the scenario ensures it will run automatically whenever the trigger node receives input or a condition is met. By default, all newly created scenarios are deactivated.
Test the Scenario
Run the scenario by clicking “Run once” and triggering an event to check if the Lemlist and 123FormBuilder integration works as expected. Depending on your setup, data should flow between Lemlist and 123FormBuilder (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.
Most powerful ways to connect Lemlist and 123FormBuilder
123FormBuilder + Lemlist + Slack: When a new submission is received in 123FormBuilder, the lead is added or found in Lemlist and added to a specified campaign. A notification with submission details is then sent to a Slack channel.
123FormBuilder + Lemlist + Google Sheets: When a new submission is received in 123FormBuilder, the lead is added or found in Lemlist. The submission data is then added as a new row in Google Sheets for tracking and analysis.
Lemlist and 123FormBuilder integration alternatives

About Lemlist
Automate personalized outreach with Lemlist inside Latenode. Build flows to trigger email campaigns based on CRM updates or data enrichment. Add conditional logic, use AI to personalize messages, and track results—all visually. Scale outreach without complex code or per-step fees. Use JavaScript for advanced customization.
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About 123FormBuilder
Streamline data collection by connecting 123FormBuilder to Latenode. Automatically trigger workflows when forms are submitted. Route form data to CRMs, databases, or email marketing tools. Use Latenode to validate entries, calculate scores, and manage follow-ups — automating processes with a no-code, scalable workflow.
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See how Latenode works
FAQ Lemlist and 123FormBuilder
How can I connect my Lemlist account to 123FormBuilder using Latenode?
To connect your Lemlist account to 123FormBuilder on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Lemlist and click on "Connect".
- Authenticate your Lemlist and 123FormBuilder accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I qualify leads from forms into Lemlist campaigns using this integration?
Yes, you can! Latenode lets you filter form data with advanced logic and AI, ensuring only qualified leads enter your Lemlist sequences. This boosts engagement & conversion rates.
What types of tasks can I perform by integrating Lemlist with 123FormBuilder?
Integrating Lemlist with 123FormBuilder allows you to perform various tasks, including:
- Automatically adding new form submitters to a Lemlist campaign.
- Updating contact information in Lemlist based on form submissions.
- Triggering personalized Lemlist sequences upon specific form responses.
- Creating leads in Lemlist from 123FormBuilder entries.
- Sending customized thank-you emails via Lemlist after form submission.
Can I use custom JavaScript with my Lemlist integration?
Yes! Latenode allows custom JavaScript, so you transform data or add advanced features beyond standard integration options.
Are there any limitations to the Lemlist and 123FormBuilder integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Complex data transformations might require custom JavaScript knowledge.
- Real-time updates depend on the API request limits of both Lemlist and 123FormBuilder.
- File uploads from 123FormBuilder to Lemlist require careful size and type handling.